Which of the following amendments might you choose to improve the overall quality of the soil in the following scenario? The soil in a garden is loamy, with a high organic content. On testing, the soil is sour, with a low pH of 4. You wish to grow lilacs, which prefer a more alkaline soil.

potassium

nitrogen

compost

calcium carbonate

Bob, a nutritionist who works for the university medical center, has been asked to prepare special diets for two patients, susan and tom. bob has decided that susan's meals should contain at least 320 mg of calcium, 17 mg of iron, and 42 mg of vitamin c, whereas tom's meals should contain at least 280 mg of calcium, 13 mg of iron, and 34 mg of vitamin c. bob has also decided that the meals are to be prepared from three basic food